Unbreakable blood

Before rebirth: The Yan family had two sons.The eldest son was taciturn, gloomy and withdrawn, and hid in his room as soon as he got home.The youngest son has a bad temper and explodes at the slightest touch. He likes to fight and make trouble, and he has been injured for a long time.After rebirth: The Yan family still has two sons.The eldest son has a calm personality, excellent grades, and is very obedient to his mother.The youngest son has a bad temper... but is always resolved by his elder brother in a few words, a typical brother accuses him of one piece. (Baby Xiaorui: Obviously I am the youngest! -_-) When he was about to finish college and was about to escape from the cage of 'home', he was reborn inexplicably.Xu Wenqing was stunned, unbelievable, and angry at the beginning, but had to accept it.Now that he was reborn, could he change his mother's fate?When did it start, his younger brother entangled him?He just helped the other side by the way.I kept convincing myself to think too much, how could such an absurd thing be possible... Where did I go wrong?What exactly should I do to prevent the other party from stepping into the abyss called "chaos/lun"... Content label: Rebirth**Love Nian Xia┃ Search keywords: Protagonist: Yan Wenqing (Xu Wenqing), Yan Jin┃ Supporting role: Yan Guodong (Yan's father), Xu Li (Yan's mother), Lin Li, Gao Delin, etc.